CVE-2026-42479

5.5 mediumEPSS 0.10%

Medium (5.5) in opencascade open cascade technology. EPSS 0.10% chance of exploitation in the next 30 days.

An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices without validation against the size of the coordinate array during geometry processing.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.10% chance of exploitation in the next 30 days; higher than 0% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2026-05-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

opencascade:open_cascade_technology

References

https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a

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